<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="试卷名称" prop="name">
        <el-input v-model="queryParams.name" placeholder="请输入试卷名称" clearable @keyup.enter.native="handleQuery" />
      </el-form-item>
      <el-form-item label="试卷省份" prop="category">
        <el-input v-model="queryParams.category" placeholder="请输入试卷省份" clearable @keyup.enter.native="handleQuery" />
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button type="primary" plain icon="el-icon-plus" size="mini" @click="handleAdd"
          v-hasPermi="['compare:papers:add']">新增</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button type="success" plain icon="el-icon-edit" size="mini" :disabled="single" @click="handleUpdate"
          v-hasPermi="['compare:papers:edit']">修改</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button type="danger" plain icon="el-icon-delete" size="mini" :disabled="multiple" @click="handleDelete"
          v-hasPermi="['compare:papers:remove']">删除</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button type="warning" plain icon="el-icon-download" size="mini" @click="handleExport"
          v-hasPermi="['compare:papers:export']">导出</el-button>
      </el-col>
      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table v-loading="loading" :data="papersList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column label="试卷名称" align="center" prop="name" />
      <el-table-column label="试卷省份" align="center" prop="category" />
      <el-table-column label="年份" align="center" prop="year" />
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button size="mini" type="text" icon="el-icon-edit" @click="handleUpdate(scope.row)"
            v-hasPermi="['compare:papers:edit']">修改</el-button>
          <el-button size="mini" type="text" icon="el-icon-delete" @click="handleDelete(scope.row)"
            v-hasPermi="['compare:papers:remove']">删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <pagination v-show="total>0" :total="total" :page.sync="queryParams.pageNum" :limit.sync="queryParams.pageSize"
      @pagination="getList" />

    <!-- 添加或修改申论试卷对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="500px" append-to-body fullscreen>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="试卷名称" prop="name">
          <el-input v-model="form.name" placeholder="请输入试卷名称" />
        </el-form-item>
        <el-form-item label="试卷省份" prop="category">
          <el-input v-model="form.category" placeholder="请输入试卷省份" />
        </el-form-item>
        <el-form-item label="年份" prop="year">
          <el-input v-model="form.year" placeholder="请输入年份" />
        </el-form-item>
        <el-form-item label="问题及答案">
          <el-button @click="addQuestion">添加问题</el-button>
          <div v-for="(question, index) in form.questions" :key="index">
            <el-input v-model="question.sequence" placeholder="问题顺序" type="number"></el-input>
            <el-input v-model="question.description" placeholder="问题描述"></el-input>
            <el-button @click="addAnswer(question)">添加答案</el-button>
            <el-button @click="removeQuestion(index)">删除问题</el-button>
            <div v-for="(answer, answerIndex) in question.answers" :key="answerIndex">
              <el-form-item :prop="'questions.' + index + '.answers.' + answerIndex + '.answerType'" :rules="[{ required: true, message: '请选择答案类型', trigger: 'change' }]">
                <editor v-model="answer.content" :min-height="120"/>
                <div style="display: flex; align-items: center;">
                  <el-input v-model="answer.source" placeholder="答案来源" style="flex: 1;"></el-input>
                  <el-radio-group v-model="answer.answerType" style="margin-left: 10px;">
                    <el-radio :label="0">机构参考</el-radio>
                    <el-radio :label="1">高分回忆</el-radio>
                  </el-radio-group>
                </div>
                <el-button @click="removeAnswer(question, answerIndex)">删除答案</el-button>
              </el-form-item>
            </div>
          </div>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
  import {
    listPapers,
    getPapers,
    delPapers,
    addPapers,
    updatePapers
  } from "@/api/function/papers";

  export default {
    name: "Papers",
    data() {
      return {
        // 遮罩层
        loading: true,
        // 选中数组
        ids: [],
        // 非单个禁用
        single: true,
        // 非多个禁用
        multiple: true,
        // 显示搜索条件
        showSearch: true,
        // 总条数
        total: 0,
        // 申论试卷表格数据
        papersList: [],
        // 弹出层标题
        title: "",
        // 是否显示弹出层
        open: false,
        // 查询参数
        queryParams: {
          pageNum: 1,
          pageSize: 10,
          name: null,
          category: null,
          year: null,
          fullMark: null,
          questionIds: null,
          questions: [] // 初始化 questions 数组
        },
        // 表单参数
        form: {
          questions: []
        },
        // 表单校验
        rules: {
          name: [{
            required: true,
            message: "试卷名称不能为空",
            trigger: "blur"
          }],
          category: [{
            required: true,
            message: "试卷省份不能为空",
            trigger: "blur"
          }],
          year: [{
            required: true,
            message: "年份不能为空",
            trigger: "blur"
          }],
          questionIds: [{
            required: true,
            message: "问题列表不能为空",
            trigger: "blur"
          }],
        }
      };
    },
    created() {
      this.getList();
    },
    methods: {
      /** 查询申论试卷列表 */
      getList() {
        this.loading = true;
        listPapers(this.queryParams).then(response => {
          this.papersList = response.rows;
          this.total = response.total;
          this.loading = false;
        });
      },
      // 取消按钮
      cancel() {
        this.open = false;
        this.reset();
      },
      // 表单重置
      reset() {
        this.form = {
          id: null,
          name: null,
          category: null,
          year: null,
          fullMark: null,
          questionIds: null,
          createTime: null,
          updateTime: null,
          questions: []
        };
        this.resetForm("form");
      },
      /** 搜索按钮操作 */
      handleQuery() {
        this.queryParams.pageNum = 1;
        this.getList();
      },
      /** 重置按钮操作 */
      resetQuery() {
        this.resetForm("queryForm");
        this.handleQuery();
      },
      // 多选框选中数据
      handleSelectionChange(selection) {
        this.ids = selection.map(item => item.id)
        this.single = selection.length !== 1
        this.multiple = !selection.length
      },
      /** 新增按钮操作 */
      handleAdd() {
        this.reset();
        this.open = true;
        this.title = "添加申论试卷";
        this.$nextTick(() => {
          this.$refs.dialog.$el.querySelector('.el-dialog').style.width = '100%'; // 设置宽度为100%
          this.$refs.dialog.$el.querySelector('.el-dialog').style.height = '100%'; // 设置高度为100%
        });
      },
      /** 修改按钮操作 */
      handleUpdate(row) {
        this.reset();
        const id = row.id || this.ids
        getPapers(id).then(response => {
          this.form = response.data;
          this.open = true;
          this.title = "修改申论试卷";
        });
      },
      /** 提交按钮 */
      submitForm() {
        this.$refs["form"].validate(valid => {
          if (valid) {
            if (this.form.id != null) {
              updatePapers(this.form).then(response => {
                this.$modal.msgSuccess("修改成功");
                this.open = false;
                this.getList();
              });
            } else {
              addPapers(this.form).then(response => {
                this.$modal.msgSuccess("新增成功");
                this.open = false;
                this.getList();
              });
            }
          }
        });
      },
      /** 删除按钮操作 */
      handleDelete(row) {
        const ids = row.id || this.ids;
        this.$modal.confirm('是否确认删除申论试卷编号为"' + ids + '"的数据项？').then(function() {
          return delPapers(ids);
        }).then(() => {
          this.getList();
          this.$modal.msgSuccess("删除成功");
        }).catch(() => {});
      },
      /** 导出按钮操作 */
      handleExport() {
        this.download('compare/papers/export', {
          ...this.queryParams
        }, `papers_${new Date().getTime()}.xlsx`)
      },
      addQuestion() {
        this.form.questions.push({
          description: '',
          score: null,
          sequence: null,
          answers: []
        });
      },
      addAnswer(question) {
        question.answers.push({
          content: '',
          source: '',
          answerType: '0'
        });
      },
      /** 删除问题 */
      removeQuestion(index) {
        this.form.questions.splice(index, 1);
      },
      /** 删除答案 */
      removeAnswer(question, answerIndex) {
        question.answers.splice(answerIndex, 1);
      }
    }
  };
</script>
